Double diode-pumped continuous wave operation of a c-cut 2044-nm Tm,Ho:YAlO3 laser

✍ Scribed by L.J. Li; B.Q. Yao; Z.G. Wang; Y.L. Ju; Y.J. Zhang; Y.Z. Wang

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 60 KB
• Volume: 6
• Category: Article
• ISSN: 1612-2011
• DOI: 10.1002/lapl.200810141

✦ Synopsis

A high efficient, continuous wave (CW), cryogenic operation of c-cut Tm(5 at.%),Ho(0.3 at.%):YAlO3 (YAP) laser was reported in this paper. In the temperature of 77 K, the Tm,Ho:YAP crystal was double end-pumped by double 7.25-W fiber-coupled laser diodes (LDs) at the center wavelength of 793.3 nm. A mirror of high reflector (HR) with a 300-mm radius of curvature acted as a resonator mirror, the output wavelength of laser was 2044 nm; the flat output coupler (OC) was 30% transmission at 2.044 μm, a CW output power of 2.28 W was acquired, corresponding to an optical-optical conversion efficiency of 15.7% and a slope efficiency of 19.3%.

Output power of laser, W 1.00 0.75 0.